Centrifugal cream-separator.



No. 821,554. I EATENTED MAY 22, 1906 Z. L. TRUESDELL.

OENTRIFUGAL CREAM SBPARATOR. APPLICATION TILED JULY6,1905.

2 SflEETS-SHIEBT 1.

WITNESSES? INVENTOR U ZINA L.TRUE$DELL. W By ATTORNEYS No. 821,554. PATENTED MAY 22, 1906.

Z. L. TR-UBSDBLL. GENTRIFUGAL CREAM SEPARATOR.

APPLICATION FILED JULY6,1905.

2 SHEETS-SHEET 2.

WITNESSES. INVENTOR M 9 {bu M 2mm L.TRU ESDELL. F I.

ATTORNEYS uurrnn srs rps i gtrnnr orrron.

ZINA L. THUESDELL, Oil CAMDEN, INDlANA.

CENTHlFUGiAL .CFREAM-$EPARATOH.

. Terr ll whom it rrtay concern.-

Be it knownthat I, ZINA L. TRUnsnELL, a

j citizen of the United States, and a resident 'tical longitudinal section of the machine.

Fig. 2 is a detail perspective view of: the

bladed carrier. Fig. 3 is a crosssection on.

about line 6 6 of Fig. 1. Fig. i is a detail perspective view of the outer section of the skimmer-cone. Fig. 5 is a detail perspective View of the inner section of the skim- 'mer-cone. Fig. 6 is a detail perspective view of the spring fastening for securing said sections together. Fig. 7 is a detail cross-sectional view on about line 10 10 of Fig. 1.

The casing L is mounted u on the main frame A mounted on the leg and having the side late A, and said casing L is provided at its bottom with a bearing L for the shaft of the bowl F and suitably supports at its upper end the receptacles L and L the lower receptacle L being designed to receive the skim-milk and the upper receptacle L being designed to receive the cream discharged in the operation of the machine.

The bowl F has its shaft F suitably journaled and provided with a worm F, meshed by'the worm-wheel (l, and is in practice given a rapid revolution in the operation of se arating the cream from the milk. Wit in the bowl F, I support the bladed carrier M, (shown in detail in Fig. 2,) whose purpose is to cause the milk in the bowl to turn with the latter. As shown the carrier M comprises a series, usually eight or more, of blades M,

rovided at their inner edges toward their ower ends with the inwardly-projecting portions M secured to the central connectingtube M the latter extending for a portion of the length of the blades and the latter being out away at M above the tube M and at M be low the said tube, the lower cut-away 01'- tion M permitting the supply of fullto pass outwardly below the tube M and the upper cut-away ortion M permitting the cream to accumulate at the inner edge of the Specification of Letters Patent. Application filel July 6. 1905. semi No. 268,366.

the sections Patented May 22, 1906.

win s of the carrier and ass u )wardlv around but not in contact with the tube K? to the top of the neck of the bowl.

Theaiskiinmer-cone forming a cover for the bowl is composed of the inner section N and the outer section 0. The outer section 0 is v flanged at its lower end at O to rest upon the upper end of the bowl F and be secured by the band P, as shownin Fig. 1, and is provided below the flange O with-a depending tubular ortion O grooved in its outer face at O and provided with the diametrically opposite notches O, in which the ends of the clasp engage. The inner section N fits within the outer section 0 and is notched at its lower edge for engagement by the ends of the clasp 0 whereby to secure'the sections N and 0 together, as will be understood from Figs. 1 and 5 of the drawings. In securing the sections N and 0 together the clasp O fits for the major portion of its length in the groove 0 of the section 0 and its inturned ends 0 enga e in the notches 0% and N of and N and operate to secure the said sections together, so they c'an be readily detached, thus facilitating cleansing the parts, as is highly desirable in this class of inventions.- The inner and outer sections N and 010i the skimmer-cone are made conical and are rovided at their upper ends with the tubuar necks N and O fitting one within the otherand having their bores eccentric to the center oi motion of the bowl in order to secure a separate discharge of the skim-milk and cream in such manner as to avoid the formation of a current or currents by which to deflect the milk and cream both to a single 7 outlet. This eccentric arrangement of the bores of the necks N and 0 as best shown in Figs. 1, 4, 5, and 7, and by which I secure i at N within the neck N a comparatively large open space to one side of the feed-tube K", Within which the cream may pass up-: wardly to its outlet N, the latter being arran ed forregulation by a screw N- and bemg ocated the same distance from the center of motion of the bowl as the outlet 0 for the skim-milk, this being desirable,-as is well derstood by those skilled in the art, In curing the passage of the skim-mill-i to the outlet 0 ,1 prefer to make the outer section 0 with the longitudinal groove or channels 0 closed at their inner sides by the fitting of the section N within the section 0 and forming a series of passages through which the ICF IIO

skim-rnillr tr vels from point at the lower edge of the section O upwardly to the annular space U surrounding the neck N oi the inner section N and mth which the dis- 5 charqebutlet O forthe skim-milk comrnucates, will be understood from Figs. 1, am. 7 of the drawings. Suitable packinggaskets may be provided at Q; and Q, as best shown in Fig? 1 of the drawings. This eccenro tric arrangement of the bores of the necks O and N" enables me to provide in a simple and erllcient manner for the separate discharge of the milk and cream at the same distance from the center 01 motion of the bowl withr5 out i any way interi erin with a thorough cleansing of the sections of the cover when detached, as before described. A feed-cue K supported by a bracket from the bowl casing L, may by its depending tube K" feed the full-milk to the bowl.

In practice I preier to make the bowl F and its skinunencone of aluminium, and any other suitable material may be employed in manufacturing other parts of the device.

In operation he bowl is rapidly revolved by the H16 s before described the full-milk is fed from the feed-cup down through the tube and discharged within and through the tube M of the winged carrier and caught by its lower ends M and distributed between the wings of the carrier and enables the full centrifugal force to act on the milk immediately on being caught by the carrier, and as there is continuous inflow the 3 5 separated particles gradually flow toward the outlets with nothing to retard the upward movement, so they will keep up with the travel of the bowl, thereby enabling the use of a bowl of smaller diameter and of less 4 length, so that the entire apparatus will be easier to run and to clean. Thus the separation of the milk and cream is eliected by the centrifugal action, the heavier particles circulating outward and passing upward between the inner and outer sections to be discharged at 0 while the lighter or cream particles accumulate toward the center of the bowl and pass upwardlj, surrounding the feed-tube, but not in contact with it, and 5 intothe eccentric bore/of the inner section N and thence out of the discharge N", being controlled by the screw-valve, as before described. -v

Having thus described-my invention ahat I laim as new, and desire to secure by Letters Patent, isv V 1. The combination substantially as herein described of the bowl-casin receptacles at the upper end thereof for 1518 skim-mill and cream, the bowl operatin within said casing, the bladed carrier wit in the bowl and so i the blades and the central tube to c 5 blades are secured near their lo. m

at their inner portions above the said tube, the skimmer-cone composed of the inner and outer sections, the outer section being providedwith a lateral flange to rest upon the bowl and below the same with a tubular tension fittin within the bowl and provided in its outer side with a circumferential groove and with notches intersecting the some said section being rovided'in its inner face with the longitudinal grooves or channels and at its upper end with the upwardly-projecting neck whose bore is eccentric to the bowl and or vided at its upper end with the cream outlet or discharge and at its lower end with an outlet for skim-milk the inner coversection fitting within the outer section and closing the inner sides or the longitudinal channels therein and provided at its upper end with a neckv ir'ojecting into that of the outer section and raving its bore eccentric to the bowl and approximately concentric with the eccentric bore ofthe neck of the outer section and communicating on its longest side with the creanroutlet in the outer section, the spring-clasp en aging in the groove of the outer section an at its ends in the notches of the inner and outer sections and securing said sections detachably together, and a feed tube discharging into the central tube of the bladed carrier, substantially as and for the purposes set forth 2, ins centrifugal:cream-separator a skimmer-cone composed of inner and outer sections having between them channels for the passage of skim-milk and provided at their upper ends with n Wardly-projecting necks fitting one within t e other and having their bores eccentrically disposed, the longer side of the bore of the inner neck forming a passage for the separated cream, substantially as set forth.

3. In a cream-separator a'slrir'nmercone composed of inner and outer sections fitting one within the other, the outer section being provided with longitudinal channels for the pessa e of skim-mill: and with an outle for said s riimmilk, the inner section fitting within the outer section and closing thednner sides of said channels and having at its up per end a neci: provided with a passage for the cream and a spring-clasp securing said sections detachably together substantially as set forth,

4. The combination of theoutcr slrimmen cone sectiomprovided at its lower end with a depending flange grooved in outer side,

and havin notches intersecting sale. groove, the inner section fitting in the outer section and havin. in its lower end notches registering with t .ose in the depending tubeor the outer section and the spring-clasp fitting in the groove of the" outer section and havin its code arranged to engage in the notches oi the inner and outer sections whereby to unite said sections and to hold same from turning independently of each other, substantially as set forth.

5. The combination of the'bowl, the skim- 5Iner-1cone having the upwardly-projecting,

.neck arra ed eccentric to the center of motion of the owl and the feed-tube extendin through said neck into the bowl and arrange concentric with the latter, substantially as setforth. g

6,111 a cream-separator the combination of the bowl, the skimmer-cone having means for discharging the skim-milk and cream, and

awinged carrier 0 crating in the bowl and having a series of b ades and a central tube to which the said blades are secured at their inner edges, the blades being cut away on their inner edges above the tube to permit the cream to accumulate at the center of the carrier, the tube terminating at its lower. end above the lower ends ofv the blades to permit the discharge of the milk at the bottom of the carrier, substantially as set forth. 7. The combination of the se arator-bowl e 5 and the skimmercone compose of, outer and inner sectionsfitting upon the bowl, longitudinal channels being provided between said sections and'the sai sections being provided at their upper ends with upwardly-projectin 3o necks whose bores areconcentric witheac other and eccentric to the center of motion of the bowl, the outer section being provided with an outlet for the skim-milk and the inher section affording at the lon er side ofits bore a passage for the cream, su stantially as and for the purpose set forth.

8. The combinationin anagparatus sub- 9. A centrifugally-operating separatingbowl having a skimmer-cone composed of 111- ner and outer sections and provided with a f neck whose interior or bore is eccentric to the bowl whereby thelonger side of said bore will afford a passage alon side a feed-tube disposed concentrically to t e bowl, substantia y as set forth.

ZINAL. TRUESDELL. Witnesses:

SoLoN C. KEMoN,

PERRY B. TU'RPIN. 

